Finding the Fourth Proportional to 112,575.06, 168,763.23 and 42,405.30

Step by Step Solution

1. Step 1: Write the proportion equation
   112,575.06 : 168,763.23 = 42,405.30 : x
2. Step 2: Convert to fraction form
   112,575.06/168,763.23 = 42,405.30/x
3. Step 3: Cross multiply
   112,575.06x = 168,763.23 × 42,405.30
4. Step 4: Simplify right side
   112,575.06x = 7,156,455,397.12
5. Step 5: Solve for x
   x = 7,156,455,397.12/112,575.06
6. Step 6: Final answer
   x = 63,570.52