Finding the Fourth Proportional to 56,756,381.79, 78,323,804.29 and 30,650,897.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,756,381.79 : 78,323,804.29 = 30,650,897.31 : x
2. Step 2: Convert to fraction form
   56,756,381.79/78,323,804.29 = 30,650,897.31/x
3. Step 3: Cross multiply
   56,756,381.79x = 78,323,804.29 × 30,650,897.31
4. Step 4: Simplify right side
   56,756,381.79x = 2,400,694,882,340,509.50
5. Step 5: Solve for x
   x = 2,400,694,882,340,509.50/56,756,381.79
6. Step 6: Final answer
   x = 42,298,236.90