Finding the Fourth Proportional to 8,557,871.89, 11,808,117.88 and 5,071,674.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,557,871.89 : 11,808,117.88 = 5,071,674.01 : x
2. Step 2: Convert to fraction form
   8,557,871.89/11,808,117.88 = 5,071,674.01/x
3. Step 3: Cross multiply
   8,557,871.89x = 11,808,117.88 × 5,071,674.01
4. Step 4: Simplify right side
   8,557,871.89x = 59,886,924,559,012.30
5. Step 5: Solve for x
   x = 59,886,924,559,012.30/8,557,871.89
6. Step 6: Final answer
   x = 6,997,875.80