Finding the Fourth Proportional to 56,795,369.42, 78,377,606.47 and 30,689,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,795,369.42 : 78,377,606.47 = 30,689,886.50 : x
2. Step 2: Convert to fraction form
   56,795,369.42/78,377,606.47 = 30,689,886.50/x
3. Step 3: Cross multiply
   56,795,369.42x = 78,377,606.47 × 30,689,886.50
4. Step 4: Simplify right side
   56,795,369.42x = 2,405,399,846,999,881.50
5. Step 5: Solve for x
   x = 2,405,399,846,999,881.50/56,795,369.42
6. Step 6: Final answer
   x = 42,352,041.58