Finding the Fourth Proportional to 60,948.40, 91,431.72 and 19,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,948.40 : 91,431.72 = 19,404.72 : x
2. Step 2: Convert to fraction form
   60,948.40/91,431.72 = 19,404.72/x
3. Step 3: Cross multiply
   60,948.40x = 91,431.72 × 19,404.72
4. Step 4: Simplify right side
   60,948.40x = 1,774,206,925.72
5. Step 5: Solve for x
   x = 1,774,206,925.72/60,948.40
6. Step 6: Final answer
   x = 29,109.98