Finding the Fourth Proportional to 143,129,290.82, 214,495,307.49 and 65,215,784.52

Step by Step Solution

1. Step 1: Write the proportion equation
   143,129,290.82 : 214,495,307.49 = 65,215,784.52 : x
2. Step 2: Convert to fraction form
   143,129,290.82/214,495,307.49 = 65,215,784.52/x
3. Step 3: Cross multiply
   143,129,290.82x = 214,495,307.49 × 65,215,784.52
4. Step 4: Simplify right side
   143,129,290.82x = 13,988,479,753,818,984
5. Step 5: Solve for x
   x = 13,988,479,753,818,984/143,129,290.82
6. Step 6: Final answer
   x = 97,733,173.09