Finding the Fourth Proportional to 210,566.17, 290,088.70 and 146,790.01

Step by Step Solution

1. Step 1: Write the proportion equation
   210,566.17 : 290,088.70 = 146,790.01 : x
2. Step 2: Convert to fraction form
   210,566.17/290,088.70 = 146,790.01/x
3. Step 3: Cross multiply
   210,566.17x = 290,088.70 × 146,790.01
4. Step 4: Simplify right side
   210,566.17x = 42,582,123,173.89
5. Step 5: Solve for x
   x = 42,582,123,173.89/210,566.17
6. Step 6: Final answer
   x = 202,226.80