Finding the Fourth Proportional to 153,156.42, 229,708.71 and 42,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,156.42 : 229,708.71 = 42,322.50 : x
2. Step 2: Convert to fraction form
   153,156.42/229,708.71 = 42,322.50/x
3. Step 3: Cross multiply
   153,156.42x = 229,708.71 × 42,322.50
4. Step 4: Simplify right side
   153,156.42x = 9,721,846,878.98
5. Step 5: Solve for x
   x = 9,721,846,878.98/153,156.42
6. Step 6: Final answer
   x = 63,476.59