Finding the Fourth Proportional to 72,773,768.86, 108,829,093.08 and 54,342,656.86

Step by Step Solution

1. Step 1: Write the proportion equation
   72,773,768.86 : 108,829,093.08 = 54,342,656.86 : x
2. Step 2: Convert to fraction form
   72,773,768.86/108,829,093.08 = 54,342,656.86/x
3. Step 3: Cross multiply
   72,773,768.86x = 108,829,093.08 × 54,342,656.86
4. Step 4: Simplify right side
   72,773,768.86x = 5,914,062,061,631,440
5. Step 5: Solve for x
   x = 5,914,062,061,631,440/72,773,768.86
6. Step 6: Final answer
   x = 81,266,397.97