Finding the Fourth Proportional to 134,830,483.98, 186,013,124.58 and 78,305,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   134,830,483.98 : 186,013,124.58 = 78,305,607.31 : x
2. Step 2: Convert to fraction form
   134,830,483.98/186,013,124.58 = 78,305,607.31/x
3. Step 3: Cross multiply
   134,830,483.98x = 186,013,124.58 × 78,305,607.31
4. Step 4: Simplify right side
   134,830,483.98x = 14,565,870,687,952,890
5. Step 5: Solve for x
   x = 14,565,870,687,952,890/134,830,483.98
6. Step 6: Final answer
   x = 108,030,990.16