Finding the Fourth Proportional to 112,837.52, 169,234.32 and 42,722.30

Step by Step Solution

1. Step 1: Write the proportion equation
   112,837.52 : 169,234.32 = 42,722.30 : x
2. Step 2: Convert to fraction form
   112,837.52/169,234.32 = 42,722.30/x
3. Step 3: Cross multiply
   112,837.52x = 169,234.32 × 42,722.30
4. Step 4: Simplify right side
   112,837.52x = 7,230,079,389.34
5. Step 5: Solve for x
   x = 7,230,079,389.34/112,837.52
6. Step 6: Final answer
   x = 64,075.14