Finding the Fourth Proportional to 139,774,454.15, 192,903,095.70 and 84,038,030.15

Step by Step Solution

1. Step 1: Write the proportion equation
   139,774,454.15 : 192,903,095.70 = 84,038,030.15 : x
2. Step 2: Convert to fraction form
   139,774,454.15/192,903,095.70 = 84,038,030.15/x
3. Step 3: Cross multiply
   139,774,454.15x = 192,903,095.70 × 84,038,030.15
4. Step 4: Simplify right side
   139,774,454.15x = 16,211,196,171,500,418
5. Step 5: Solve for x
   x = 16,211,196,171,500,418/139,774,454.15
6. Step 6: Final answer
   x = 115,981,108.78