Finding the Fourth Proportional to 153,499, 230,261.46 and 42,691

Step by Step Solution

1. Step 1: Write the proportion equation
   153,499 : 230,261.46 = 42,691 : x
2. Step 2: Convert to fraction form
   153,499/230,261.46 = 42,691/x
3. Step 3: Cross multiply
   153,499x = 230,261.46 × 42,691
4. Step 4: Simplify right side
   153,499x = 9,830,091,988.86
5. Step 5: Solve for x
   x = 9,830,091,988.86/153,499
6. Step 6: Final answer
   x = 64,040.10