Finding the Fourth Proportional to 144,973.35, 217,457.28 and 59,566.05

Step by Step Solution

1. Step 1: Write the proportion equation
   144,973.35 : 217,457.28 = 59,566.05 : x
2. Step 2: Convert to fraction form
   144,973.35/217,457.28 = 59,566.05/x
3. Step 3: Cross multiply
   144,973.35x = 217,457.28 × 59,566.05
4. Step 4: Simplify right side
   144,973.35x = 12,953,071,213.34
5. Step 5: Solve for x
   x = 12,953,071,213.34/144,973.35
6. Step 6: Final answer
   x = 89,347.95