Finding the Fourth Proportional to 56,865,372,777.50, 78,476,681,211.84 and 31,490,844,109.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,865,372,777.50 : 78,476,681,211.84 = 31,490,844,109.31 : x
2. Step 2: Convert to fraction form
   56,865,372,777.50/78,476,681,211.84 = 31,490,844,109.31/x
3. Step 3: Cross multiply
   56,865,372,777.50x = 78,476,681,211.84 × 31,490,844,109.31
4. Step 4: Simplify right side
   56,865,372,777.50x = 2,471,296,934,258,227,019,776
5. Step 5: Solve for x
   x = 2,471,296,934,258,227,019,776/56,865,372,777.50
6. Step 6: Final answer
   x = 43,458,730,920.98