Finding the Fourth Proportional to 61,219.72, 91,742.10 and 34,870.06

Step by Step Solution

1. Step 1: Write the proportion equation
   61,219.72 : 91,742.10 = 34,870.06 : x
2. Step 2: Convert to fraction form
   61,219.72/91,742.10 = 34,870.06/x
3. Step 3: Cross multiply
   61,219.72x = 91,742.10 × 34,870.06
4. Step 4: Simplify right side
   61,219.72x = 3,199,052,531.53
5. Step 5: Solve for x
   x = 3,199,052,531.53/61,219.72
6. Step 6: Final answer
   x = 52,255.26