Finding the Fourth Proportional to 142,779.33, 214,130.61 and 42,917.22

Step by Step Solution

1. Step 1: Write the proportion equation
   142,779.33 : 214,130.61 = 42,917.22 : x
2. Step 2: Convert to fraction form
   142,779.33/214,130.61 = 42,917.22/x
3. Step 3: Cross multiply
   142,779.33x = 214,130.61 × 42,917.22
4. Step 4: Simplify right side
   142,779.33x = 9,189,890,498.10
5. Step 5: Solve for x
   x = 9,189,890,498.10/142,779.33
6. Step 6: Final answer
   x = 64,364.29