Finding the Fourth Proportional to 139,782,211.55, 192,900,036.42 and 77,056,932.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,782,211.55 : 192,900,036.42 = 77,056,932.59 : x
2. Step 2: Convert to fraction form
   139,782,211.55/192,900,036.42 = 77,056,932.59/x
3. Step 3: Cross multiply
   139,782,211.55x = 192,900,036.42 × 77,056,932.59
4. Step 4: Simplify right side
   139,782,211.55x = 14,864,285,102,059,982
5. Step 5: Solve for x
   x = 14,864,285,102,059,982/139,782,211.55
6. Step 6: Final answer
   x = 106,338,889.17