Finding the Fourth Proportional to 56,606,953.86, 78,116,567.80 and 31,488,940.53

Step by Step Solution

1. Step 1: Write the proportion equation
   56,606,953.86 : 78,116,567.80 = 31,488,940.53 : x
2. Step 2: Convert to fraction form
   56,606,953.86/78,116,567.80 = 31,488,940.53/x
3. Step 3: Cross multiply
   56,606,953.86x = 78,116,567.80 × 31,488,940.53
4. Step 4: Simplify right side
   56,606,953.86x = 2,459,807,957,861,913
5. Step 5: Solve for x
   x = 2,459,807,957,861,913/56,606,953.86
6. Step 6: Final answer
   x = 43,454,165.79