Finding the Fourth Proportional to 89,430.72, 134,145.60 and 22,870.74

Step by Step Solution

1. Step 1: Write the proportion equation
   89,430.72 : 134,145.60 = 22,870.74 : x
2. Step 2: Convert to fraction form
   89,430.72/134,145.60 = 22,870.74/x
3. Step 3: Cross multiply
   89,430.72x = 134,145.60 × 22,870.74
4. Step 4: Simplify right side
   89,430.72x = 3,068,009,139.74
5. Step 5: Solve for x
   x = 3,068,009,139.74/89,430.72
6. Step 6: Final answer
   x = 34,305.99