Finding the Fourth Proportional to 56,838,428.96, 78,437,087.60 and 30,732,939.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,838,428.96 : 78,437,087.60 = 30,732,939.86 : x
2. Step 2: Convert to fraction form
   56,838,428.96/78,437,087.60 = 30,732,939.86/x
3. Step 3: Cross multiply
   56,838,428.96x = 78,437,087.60 × 30,732,939.86
4. Step 4: Simplify right side
   56,838,428.96x = 2,410,602,295,458,501.50
5. Step 5: Solve for x
   x = 2,410,602,295,458,501.50/56,838,428.96
6. Step 6: Final answer
   x = 42,411,487.08