Finding the Fourth Proportional to 124,002.40, 186,061.20 and 64,904.80

Step by Step Solution

1. Step 1: Write the proportion equation
   124,002.40 : 186,061.20 = 64,904.80 : x
2. Step 2: Convert to fraction form
   124,002.40/186,061.20 = 64,904.80/x
3. Step 3: Cross multiply
   124,002.40x = 186,061.20 × 64,904.80
4. Step 4: Simplify right side
   124,002.40x = 12,076,264,973.76
5. Step 5: Solve for x
   x = 12,076,264,973.76/124,002.40
6. Step 6: Final answer
   x = 97,387.35