Finding the Fourth Proportional to 139,913,071.52, 193,078,959.86 and 77,191,812.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,913,071.52 : 193,078,959.86 = 77,191,812.86 : x
2. Step 2: Convert to fraction form
   139,913,071.52/193,078,959.86 = 77,191,812.86/x
3. Step 3: Cross multiply
   139,913,071.52x = 193,078,959.86 × 77,191,812.86
4. Step 4: Simplify right side
   139,913,071.52x = 14,904,114,936,330,612
5. Step 5: Solve for x
   x = 14,904,114,936,330,612/139,913,071.52
6. Step 6: Final answer
   x = 106,524,106.54