Finding the Fourth Proportional to 127,080.47, 190,565.31 and 42,824.93

Step by Step Solution

1. Step 1: Write the proportion equation
   127,080.47 : 190,565.31 = 42,824.93 : x
2. Step 2: Convert to fraction form
   127,080.47/190,565.31 = 42,824.93/x
3. Step 3: Cross multiply
   127,080.47x = 190,565.31 × 42,824.93
4. Step 4: Simplify right side
   127,080.47x = 8,160,946,061.18
5. Step 5: Solve for x
   x = 8,160,946,061.18/127,080.47
6. Step 6: Final answer
   x = 64,218.73