Finding the Fourth Proportional to 62,870.10, 94,302.45 and 21,317.10

Step by Step Solution

1. Step 1: Write the proportion equation
   62,870.10 : 94,302.45 = 21,317.10 : x
2. Step 2: Convert to fraction form
   62,870.10/94,302.45 = 21,317.10/x
3. Step 3: Cross multiply
   62,870.10x = 94,302.45 × 21,317.10
4. Step 4: Simplify right side
   62,870.10x = 2,010,254,756.90
5. Step 5: Solve for x
   x = 2,010,254,756.90/62,870.10
6. Step 6: Final answer
   x = 31,974.73