Finding the Fourth Proportional to 93,931.93, 129,631.35 and 55,714.15

Step by Step Solution

1. Step 1: Write the proportion equation
   93,931.93 : 129,631.35 = 55,714.15 : x
2. Step 2: Convert to fraction form
   93,931.93/129,631.35 = 55,714.15/x
3. Step 3: Cross multiply
   93,931.93x = 129,631.35 × 55,714.15
4. Step 4: Simplify right side
   93,931.93x = 7,222,300,478.60
5. Step 5: Solve for x
   x = 7,222,300,478.60/93,931.93
6. Step 6: Final answer
   x = 76,888.66