Finding the Fourth Proportional to 60,189.30, 90,422.34 and 42,460.74

Step by Step Solution

1. Step 1: Write the proportion equation
   60,189.30 : 90,422.34 = 42,460.74 : x
2. Step 2: Convert to fraction form
   60,189.30/90,422.34 = 42,460.74/x
3. Step 3: Cross multiply
   60,189.30x = 90,422.34 × 42,460.74
4. Step 4: Simplify right side
   60,189.30x = 3,839,399,468.93
5. Step 5: Solve for x
   x = 3,839,399,468.93/60,189.30
6. Step 6: Final answer
   x = 63,788.74